whitepoint

XYZ color values of standard illuminants

Syntax

xyz = whitepoint(string)
xyz = whitepoint

Description

xyz = whitepoint(string) returns xyz, a three-element row vector of XYZ values scaled so that Y = 1. string specifies the white reference illuminant. The following table lists all the possible values for string. The default value is enclosed in braces ({}).

Value

Description

'a'

CIE standard illuminant A

'c'

CIE standard illuminant C

'd50'

CIE standard illuminant D50

'd55'

CIE standard illuminant D55

'd65'

CIE standard illuminant D65

{'icc'}

ICC standard profile connection space illuminant; a 16-bit fractional approximation of D50

xyz = whitepoint is the same as xyz = whitepoint('icc').

Class Support

string is a character array. xyz is of class double.

Examples

Return the XYZ color space representation of the default white reference illuminant 'icc'.

wp_icc = whitepoint

wp_icc =

    0.9642    1.0000    0.8249
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